1)　　采用先来先服务（FCFS）调度算法，即按作业到达的先后次序进行调度。总是首先调度在系统中等待时间最长的作业。

2)　　短作业优先 (SJF) 调度算法，优先调度要求运行时间最短的作业。

3)　　响应比高者优先(HRRN)调度算法，为每个作业设置一个优先权(响应比)，调度之前先计算各作业的优先权，优先数高者优先调度。RP (响应比)＝ 作业周转时间 / 作业运行时间

每个作业由一个作业控制块JCB表示，JCB可以包含以下信息：作业名、提交（到达）时间、所需的运行时间、所需的资源、作业状态、链指针等等。

作业的状态可以是等待W（Wait）、运行R（Run）和完成F（Finish）三种之一。每个作业的最初状态都是等待W。-1) first-come-first-served (FCFS) scheduling algorithm, that is the priority job arrives scheduling. Always the first to wait for the longest time job scheduling system. 2) short operating priority (SJF) scheduling algorithm, priority scheduling requirements of the job with the shortest running time. 3) response than the high priority (HRRN) scheduling algorithm, set a priority for each job (Response Ratio), calculated for various jobs before scheduling priority, priority number of high-priority scheduling. RP (response ratio) = the operating turnaround time/job run time for each job by a job control block JCB JCB can contain the following information: job name, submitted (arrival) time, the running time required, the necessary resources, job status, and chain pointers. The status of the job can be waiting for W (Wait), one of three run R (Run) and the completion of F (Finish). The initial state of each job is waiting for W.